CVE-2026-41898
Description
A flaw was found in rust-openssl, a library providing OpenSSL bindings for the Rust programming language. Foreign Function Interface (FFI) trampolines in several SslContextBuilder callbacks did not properly validate the size of data returned by user-defined closures before passing it to OpenSSL. This improper validation could lead to buffer overflows, potentially allowing a remote attacker to achieve arbitrary code execution or cause a denial of service.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Understanding the Weakness (CWE)
Other,Integrity,Availability
Technical Impact: Varies by Context; DoS: Resource Consumption (CPU); Modify Memory; Read Memory
When the quantity is not properly validated, then attackers can specify malicious quantities to cause excessive resource allocation, trigger unexpected failures, enable buffer overflows, etc.
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